<template>
    <div class="cmt-container">
        <h3>发表评论</h3>
        <hr>
        <textarea name="" id="" maxlength="120" v-model="msg"></textarea>

        <mt-button type="primary" size="large" plain  @click="postComment">发布评论</mt-button>
        <div class="cmt-list">
            <div class="cmt-item" v-for="(item,i) in  comments" :key="i">
                <div class="cmt-title">
                    第{{i+1}}楼&nbsp;&nbsp;用户:{{item.user_name}}&nbsp;发表时间:{{item.add_time | dataFormat}}
                </div>
                <div class="cmt-body">
                    {{item.content=="undefined"?"这家伙很懒啥都没留下":item.content}}
                </div>
            </div>
        </div>
        <mt-button type="primary" size="large" plain @click="getMore">加载更多</mt-button>
    </div>
</template>

<script>
import { getcomments,postcomment } from "@/api";
import { Toast } from "mint-ui";
export default {
    data(){
        return {
            pageindex:1,
            comments:[],
            msg:""
        }
    },
    created(){
        this.init();
    },
    methods:{
        init(){
            /* 获取评论 */
            getcomments({id:this.id,pageindex:this.pageindex}).then(res=>{
                //console.log(res,777);
                if(res.status==200){
                    /* this.comments=res.data.message; */
                    /* 将之前的老数据和获取的新数据拼接起来 */
                    this.comments=this.comments.concat(res.data.message);
                    console.log(this.comments,66);
                }else{
                    Toast("获取评论失败");
                }
            })
        },
        /* 加载更多 */
        getMore(){
            this.pageindex++;
            this.init();
        },

        /* 发表评论 */
        postComment(){
            if(this.msg.trim().length==0){
                return Toast("评论内容为空");
            };
            postcomment({id:this.id,content:this.msg.trim()}).then(res=>{
                console.log(res);
                if(res.status===200){
                    var cmt={user_name:"匿名用户",add_time:Date.now(),content:this.msg};
                    this.comments.unshift(cmt);
                    this.msg="";
                }
            })
        }
    },
    props:["id"]
}
</script>
<style lang="less" scoped>
.cmt-container{
    h3{
        font-size: 18px;
    }
    textarea{
        font-size:14px;
        height:85px;
        margin: 0;
    }
    .cmt-list{
        margin: 10px 0;
        .cmt-item{
            font-size:13px;
            .cmt-title{
                line-height:30px;
                background-color: #ccc;
                .cmt-body{
                    line-height:30px;
                    text-indent:2em;
                }
            }
        }

    }
}
</style>

